ESP32 Set I2C Pins (SDA, SCL) When you include the Arduino Core I2C driver “Wire.h“, it’s by default set to I2C0 peripheral, and the (SDA & SCL) lines are set to defaults as shown in the previous section. Ho
在通用 ESP32 上,默认的 I2C 引脚为: 亲测可用脚位:1,2,3,4,5,6,7,8,9,10,18,19 SDA: GPIO8 SCL: GPIO9 #ifndef Pins_Arduino_h #define Pins_Arduino_h #include <stdint.h> #define EXTERNAL_NUM_INTERRUPTS 22 #define NUM_DIGITAL_PINS 22 #define NUM_ANALOG_INPUTS 6 #define analogInpu...
1、MPU6050模块 2、arduino增加模块 3、连线 sda---GPIO21 scl---GPIO22 3、代码 #include "I2Cdev.h"#include "MPU6050.h"#include "Wire.h"MPU6050 accelgyro;int16_t ax, ay, az;int16_t gx, gy, gz;void setup() { Wire.setPins(21,22); //sda, scl Wire.begin(); Serial.begin...
ESP_RETURN_ON_ERROR(i2c_driver_install(I2C_NUM, I2C_MODE_MASTER, 0, 0, 0), TAG, "install i2c driver failed"); /* 初始化es8311芯片 */ es8311_handle_t es_handle = es8311_create(I2C_NUM, ES8311_ADDRRES_0); ESP_RETURN_ON_FALSE(es_handle, ESP_FAIL, TAG, "es8311 create failed"...
// Define I2C Pins for ESP32-CAM#defineI2C_SDA14#defineI2C_SCL15// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)Adafruit_SSD1306display(SCREEN_WIDTH,SCREEN_HEIGHT,&Wire,-1);voidsetup(){Serial.begin(115200);// Initialize I2CWire.begin(I2C_SDA,I2C_SCL);// ...
According to the datasheets, ESP32 has two i2c interfaces. And one set of pins corresponding is (21,22). What's the other pin set that can be used for the second i2c interface? Are they also dedicated or any GPIO pin can be configure as I2C? Cheers....
It can also happen that not all pins are brought out on some modules / kits, this is sometimes the case with Flash pins, if they are embedded in the SoC (Flash inside, psRAM inside) standard pins are "only pre set" in arduino, you can use any GPIO pin for I2C ( SDA, SCL ) ...
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1); void setup() { Serial.begin(115200); if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64 ...
I would like to know where are the I2C pins on the ESP32-PICO-KIT. I cannot find much information on this board and I can't see any labels for the SDA and SCL pins in the documentation on the espressif site. I have tried pins 21 and 22 which are the usual pins for ESP32-WROOM...
i2c_param_configwill configure the parameters we just set.I2C_NUM_0is the I2C instance we are using. If your board have more than 1 I2C, then you should define the instance as per the pins you are using. After configuring the parameters,i2c_driver_installwill install the driver. The para...